SFP transceiver BlueOptics SFP991-1ELH20-BO 1250 Mbit/s 1550 nm

The BlueOptics SFP991-1ELH20-BO is a single‑mode fiber SFP transceiver module designed for 1000BASE‑ZX applications. It supports a maximum data transfer rate of 1250 Mbit/s at a wavelength of 1550 nm, features a metal housing and a lightweight design (approx. 3 g). The module uses an SFP interface and an LC duplex optical connector (MSA‑compliant) and is intended for long‑reach optical links on single‑mode fiber.

Advantages

The transceiver offers compatibility with devices that accept standard SFP 1000BASE‑ZX modules and supports Ethernet and related high‑speed protocols at up to 1.25 Gbit/s. A metal housing provides mechanical robustness and thermal conduction, while the compact SFP form factor allows easy hot‑swap installation. The 1550 nm wavelength and single‑mode design enable long‑distance links when used with appropriate fiber and patching. The module also supports common digital diagnostic monitoring functions when the host device provides DDM/DOM access.

Suitable for

• Long‑reach single‑mode Ethernet links (1000BASE‑ZX)
• Interconnection of switches, routers and storage systems supporting SFP modules
• Backbone and metropolitan fiber links requiring 1550 nm optics
• Environments where compact, hot‑swappable transceivers are needed

Key specifications

• Interface type: SFP (small form‑factor pluggable)
• Data rate: up to 1250 Mbit/s (1.25 Gbit/s)
• Optical wavelength: 1550 nm
• Fiber type: single‑mode fiber (LC duplex connector)
• Housing: metal, compact SFP form factor
• Supply voltage: 3.3 V
• Weight: approximately 3 g
• Color: silver

How to use

Install the BlueOptics SFP991-1ELH20-BO by inserting the SFP module into a compatible SFP slot on the host device until it latches. Connect single‑mode LC duplex fiber patch cords to the transmit and receive ports, taking care to match Tx to Rx on the opposing transceiver. Ensure the host device supports 1000BASE‑ZX optics and, if you require remote monitoring, that the device exposes DDM/DOM registers. Observe standard electrostatic discharge precautions and follow the host vendor’s guidelines for hot‑swap and firmware compatibility.

Recommendations

For reliable long‑distance performance, use quality single‑mode fiber cabling and LC duplex patch cords, verify link attenuation and connector cleanliness, and confirm that the host equipment firmware supports third‑party SFP modules and DDM/DOM monitoring if required.